We are currently having a discussion on the F-Droid forum about letting apps toot to the Fediverse. This would be used to share app changelogs, and eventually display comments from the Fediverse inside the F-Droid app. Unfortunately, none of us has experience with Mastodon/Pleroma development, so it would be very helpful if a developer could give some input.
The thread is rather long, so feel free to make a comment here or on the forum and we will give you specific questions we have.
https://forum.f-droid.org/t/fdroidpub-let-apps-in-f-droid-toot-to-the-fediverse/3553